package com.oocl.products.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginFilter implements Filter {

    public LoginFilter() {}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest httpRequest = (HttpServletRequest)request;
		HttpServletResponse httpResponse = (HttpServletResponse)response;
		HttpSession session = httpRequest.getSession();
		Object userObj = session.getAttribute("user");
		if(userObj==null){
			httpResponse.sendRedirect("../login.jsp");
		}else{
			chain.doFilter(request, response);	
		}
	}
	
	public void destroy() {
		// TODO Auto-generated method stub
	}



	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
